我执行了我认为是简单的软件包安装的操作，但没有成功。接下来，我该怎么办才能解决此问题？
我做了什么（请参见下面的详细信息）：
conda install yaml
接下来我要做什么：
python
Python 3.6.8 |Anaconda, Inc.| (default, Dec 30 2018, 01:22:34)
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import yaml
我得到了什么
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'yaml'
详细信息：
(tf-cpu) [....]$ conda install yaml
Collecting package metadata: done
Solving environment: done
## Package Plan ##
environment location: /home/billtubbs/miniconda3/envs/tf-cpu
added / updated specs:
- yaml
The following packages will be downloaded:
package | build
---------------------------|-----------------
certifi-2019.3.9 | py36_0 155 KB
------------------------------------------------------------
Total: 155 KB
The following packages will be SUPERSEDED by a higher-priority channel:
ca-certificates conda-forge::ca-certificates-2019.3.9~ --> pkgs/main::ca-certificates-2019.1.23-0
certifi conda-forge --> pkgs/main
openssl conda-forge::openssl-1.1.1b-h14c3975_1 --> pkgs/main::openssl-1.1.1b-h7b6447c_1
Proceed ([y]/n)? y
Downloading and Extracting Packages
certifi-2019.3.9 | 155 KB | ##################################### | 100%
Preparing transaction: done
Verifying transaction: done
Executing transaction: done
(tf-cpu) [....]$ ipython
Python 3.6.8 |Anaconda, Inc.| (default, Dec 30 2018, 01:22:34)
Type 'copyright', 'credits' or 'license' for more information
IPython 7.5.0 -- An enhanced Interactive Python. Type '?' for help.
In [1]: import yaml
---------------------------------------------------------------------------
ModuleNotFoundError Traceback (most recent call last)
<ipython-input-1-38c9922a026e> in <module>
----> 1 import yaml
ModuleNotFoundError: No module named 'yaml'
In [2]: exit()
(tf-cpu) [....]$ conda install yaml
Collecting package metadata: done
Solving environment: done
# All requested packages already installed.
(tf-cpu) [....]$ conda info --envs
# conda environments:
#
base /home/billtubbs/miniconda3
tf-cpu * /home/billtubbs/miniconda3/envs/tf-cpu
tf-gpu /home/billtubbs/miniconda3/envs/tf-gpu
(tf-cpu) [....]$ conda search yaml
Loading channels: done
# Name Version Build Channel
yaml 0.1.4 0 pkgs/free
yaml 0.1.6 0 pkgs/free
yaml 0.1.7 h014fa73_1 pkgs/main
yaml 0.1.7 h014fa73_2 pkgs/main
yaml 0.1.7 h96e3832_1 pkgs/main
yaml 0.1.7 had09818_2 pkgs/main
(tf-cpu) [....]$ conda list
# packages in environment at /home/billtubbs/miniconda3/envs/tf-cpu:
#
# Name Version Build Channel
_tflow_select 2.3.0 mkl
absl-py 0.7.1 py36_0
astor 0.7.1 py36_0
atari-py 0.1.15 pypi_0 pypi
backcall 0.1.0 py36_0
blas 1.0 mkl
c-ares 1.15.0 h7b6447c_1
ca-certificates 2019.1.23 0
certifi 2019.3.9 py36_0
click 7.0 pypi_0 pypi
cloudpickle 1.1.1 pypi_0 pypi
control 0.8.2 py36_0 conda-forge
cycler 0.10.0 py36_0
dbus 1.13.6 h746ee38_0
decorator 4.4.0 py36_1
dill 0.2.9 pypi_0 pypi
expat 2.2.6 he6710b0_0
fontconfig 2.13.0 h9420a91_0
freetype 2.9.1 h8a8886c_1
future 0.17.1 pypi_0 pypi
gast 0.2.2 py36_0
glib 2.56.2 hd408876_0
glob2 0.6 pypi_0 pypi
grpcio 1.16.1 py36hf8bcb03_1
gst-plugins-base 1.14.0 hbbd80ab_1
gstreamer 1.14.0 hb453b48_1
gym 0.12.4 pypi_0 pypi
h5py 2.9.0 py36h7918eee_0
hdf5 1.10.4 hb1b8bf9_0
icu 58.2 h9c2bf20_1
intel-openmp 2019.3 199
ipython 7.5.0 py36h39e3cac_0
ipython_genutils 0.2.0 py36_0
jedi 0.13.3 py36_0
joblib 0.13.2 pypi_0 pypi
jpeg 9b h024ee3a_2
keras-applications 1.0.7 py_0
keras-preprocessing 1.0.9 py_0
kiwisolver 1.1.0 py36he6710b0_0
libedit 3.1.20181209 hc058e9b_0
libffi 3.2.1 hd88cf55_4
libgcc-ng 8.2.0 hdf63c60_1
libgfortran-ng 7.3.0 hdf63c60_0
libpng 1.6.37 hbc83047_0
libprotobuf 3.7.1 hd408876_0
libstdcxx-ng 8.2.0 hdf63c60_1
libuuid 1.0.3 h1bed415_2
libxcb 1.13 h1bed415_1
libxml2 2.9.9 he19cac6_0
markdown 3.1 py36_0
matplotlib 3.0.3 py36h5429711_0
mkl 2019.3 199
mkl_fft 1.0.12 py36ha843d7b_0
mkl_random 1.0.2 py36hd81dba3_0
mock 2.0.0 py36_0
mpi 1.0 openmpi conda-forge
mpi4py 2.0.0 py36_2
mpich2 1.4.1p1 0
ncurses 6.1 he6710b0_1
numpy 1.16.3 py36h7e9f1db_0
numpy-base 1.16.3 py36hde5b4d6_0
openblas 0.3.3 h9ac9557_1001 conda-forge
opencv-python 4.1.0.25 pypi_0 pypi
openmpi 4.0.1 hc99cbb1_0 conda-forge
openssl 1.1.1b h7b6447c_1
pandas 0.24.2 py36he6710b0_0
parso 0.4.0 py_0
pbr 5.1.3 py_0
pcre 8.43 he6710b0_0
pexpect 4.7.0 py36_0
pickleshare 0.7.5 py36_0
pillow 6.0.0 pypi_0 pypi
pip 19.1.1 py36_0
prompt_toolkit 2.0.9 py36_0
protobuf 3.7.1 py36he6710b0_0
ptyprocess 0.6.0 py36_0
pyglet 1.3.2 pypi_0 pypi
pygments 2.4.0 py_0
pyparsing 2.4.0 py_0
pyqt 5.9.2 py36h05f1152_2
python 3.6.8 h0371630_0
python-dateutil 2.8.0 py36_0
pytz 2019.1 py_0
pyzmq 18.0.1 pypi_0 pypi
qt 5.9.7 h5867ecd_1
readline 7.0 h7b6447c_5
scipy 1.2.1 py36h7c811a0_0
seaborn 0.9.0 pypi_0 pypi
setuptools 41.0.1 py36_0
sip 4.19.8 py36hf484d3e_0
six 1.12.0 py36_0
slycot 0.3.4.0 py36hf0b9930_0 conda-forge
sqlite 3.28.0 h7b6447c_0
stable-baselines 2.5.1 pypi_0 pypi
tensorboard 1.13.1 py36hf484d3e_0
tensorflow 1.13.1 mkl_py36h27d456a_0
tensorflow-base 1.13.1 mkl_py36h7ce6ba3_0
tensorflow-estimator 1.13.0 py_0
termcolor 1.1.0 py36_1
tk 8.6.8 hbc83047_0
tornado 6.0.2 py36h7b6447c_0
tqdm 4.32.1 pypi_0 pypi
traitlets 4.3.2 py36_0
wcwidth 0.1.7 py36_0
werkzeug 0.15.2 py_0
wheel 0.33.4 py36_0
xz 5.2.4 h14c3975_4
yaml 0.1.7 had09818_2
zlib 1.2.11 h7b6447c_3
zmq 0.0.0 pypi_0 pypi
(tf-cpu) [....]$
答案 0 :(得分：0)
这是答案：
conda install pyyaml
或
pip install pyyaml
有关更多信息，请参见this anaconda issue线程。
另外，this stackoverflow question相似/重复。